$define radial fracture glass$ $define radial fracture glass$

Types of Glass There are many different types of glass.

$define radial fracture glass$

The raw materials for making glass are all oxides (contain oxygen) The composition of a sample can be expressed in percentage of different oxides Example: the approximate composition of window or bottle glass is Silica (SiO2) – 73.6 % Soda (Na2O) – 16.0 % Lime (CaO) – 5.2 % Potash (K2O) – 0.6 % Magnesia (MgO) – 3.6 % Alumina (Al2O3) – 1.0Ĩ Glass Analysis Composition of Glass Types of Glass Comparing Glassĭensity Refractivity Glass Fracture Patterns Collecting Glass As Evidenceĩ 2.

$define radial fracture glass$

Three categories of substances found in all glass Formers Makes up the bulk of the glass Examples: silicon dioxide (SiO2) in the form of sand, boron trioxide (B2O3), and phosphorus pentoxide (P2O5) Fluxes Change formers’ melting points Examples: sodium carbonate (Na2CO3) and potassium carbonate (K2CO3) Stabilizers Strengthen the glass and make it resistant to water Calcium carbonate (CaCO3) is the most frequently used Made by melting the following ingredients at extremely high temperatures: Sand also known as silica or silicon dioxide (SiO2), is the primary ingredient Lime or calcium oxide (CaO) is added to prevent the glass from becoming soluble in water Sodium oxide (Na2O) is added to reduce the melting point of silica or sand Composition of Glass Glass is a hard, brittle, amorphous materialĪmorphous (without shape) because its atoms are arranged randomly Due to its irregular atomic structure, it produces a variety of fracture patterns when broken Brittle because it breaks easily if struck in the right direction Has numerous uses and thousands of compositions Composition of Glass Types of Glass Comparing Glass Density Refractivity Glass Fracture Patterns Collecting Glass As Evidenceģ 1.

$define radial fracture glass$

Define radial fracture glass